cat/dev/tty
| A. | Throws garbage onto the terminal 1. |
| B. | Just echoes what you type. line by line |
| C. | Terminates if one types control at the beginning of a line |
| D. | Both (b) & (c) |
Answer : D Explanation : First, the i-node number corresponding to idevi tty (i.e. the terminal currently used) is procured. Then the i-node is accessed. From it, the system understands, it is a character special file. So, whatever you type, if followed by ' n ' will he echoed in the terminal. Typing control d, also lushes the buffer contents to t ty. But unlike 'control d is not transmitted. So. if you type ab ( Ad) cd ( Ad) first ab will be immediately transmitted, then cd will be transmitted. Whenever you press control d. then what you have typed between the previous control d (or from the start of the current line) to the current control d will be transmitted. So. if you type two control d consecutively or a single control d. at the beginning of a line then you are telling it to transmit. but nothing is there to be transmitted. So. the command gets terminated. |
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
